SANEWinDS Activity
Enables use of SANE scanners from Windows, with or without TWAIN
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Activity for SANEWinDS
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gharris999 posted a comment on discussion General Discussion
Turns out that this is not a show-stopper issue for me. Paint Shop Pro includes a menu item "End TWAIN Session" that can close the SANEWinDS dialog. So: this is a non-issue. Sorry for the false alarm.
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Anyway, I'm seeing this behavior with both the x64 and x86 version of SANEWinDS. It's as though it's waiting for some kind of confirmation from PSP or from the saned server, but never gets it. Here are entries from the saned.log for two successful scans: one from SANEWinDS where the twain window hangs, and one from XSANE that does not hang. I'm not seeing much of any difference between the two.
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It's ancient. Paint Shop Pro, version 7.04. 32bit windows app from 2001. Seems to work just fine with the native HP twain scanning driver for my scanner. But there's no network scanning with that, so I'm excited for SANEWinDS. It's communicating over port 6566 to avision:libusb on a Ubuntu box that the scanner is connected to.
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Anyway, I'm seeing this behavior with both the x64 and x86 version of SANEWinDS. It's as though it's waiting for some kind of confirmation from PSP or from the saned server, but never gets it. Here are entries from the saned.log for a two successful scans: one from SANEWinDS where the twain window hangs, and one from XSANE that does not hang. I'm not seeing much of any difference between the two.
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It's ancient. Paint Shop Pro, version 7.04. 32bit windows app from 2001. Seems to work just fine with the native HP twain scanning driver for my scanner. But there's no network scanning with that, so I'm excited SANEWinDS. It's communicating over port 6566 to avision:libusb on a Ubuntu box that the scanner is connected to.
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Alec Skelly posted a comment on discussion General Discussion
What's the name of the application?
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After a successful network scan, the twain scanning dialog box has grayed-out "Close" and "Scan" buttons. The only way to continue is to kill the host graphics program calling twain via the task manager.
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SANEWinDS released /Archive/SANEWinDS_1.6.9220_x86.msi
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Version 1.6.9221
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Improved appearance of main form during startup
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TWAIN: Fixed empty progress bar in no-GUI mode
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Version 1.6.9220
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Fixed failure to send button press action to backend
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TWAIN: Check for null SANE option descriptor array before attempting to process options
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TWAIN: Removed the word "Error" from a log message that's only a warning
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TWAIN: Don't try to get SANE options if no device was located
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TWAIN: Fixed missing icon and title on progress form
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TWAIN: Fixed failure to interpret TW_BOOL enum values as boolean
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Package updates
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Prevent applying user settings repeatedly during startup and backend changes
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Hide invalid and inactive SANE options like scanimage does
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Fixed incorrect display of SANE_UNIT_MICROSECOND
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fixed null reference bug in ADF detection
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Be more explicit when mixing bitwise and boolean logic
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Correction: It's because SANEWinDS displays inactive options while scanimage does not. I can't think of any good reason to display inactive options, so I'll fix that.
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It's because of this code in canon_dr.c (https://gitlab.com/sane-project/backends/-/blob/master/backend/canon_dr.c?ref_type=heads): /* "Imprinter" group --------------------------------------------------- */ if(option==OPT_IMPRINT_GROUP){ opt->name = "imprinter-options"; opt->title = SANE_I18N ("Imprinter Options"); opt->desc = SANE_I18N ("Controls for imprinter units"); opt->type = SANE_TYPE_GROUP; opt->constraint_type = SANE_CONSTRAINT_NONE; /*flaming hack to get scanimage to hide group*/ if (...
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Pascal Arnold posted a comment on discussion General Discussion
It works now. Thanks for your support. But one think is diverent with my change to SANE 1.3.1 I get Imprinter Options in SANEWinDS but not with scanimage -A Output format is not set, using pnm as a default. All options specific to device net:192.168.14.207:canon_dr:libusb:001:005: Standard: --source ADF Front|ADF Duplex [ADF Front] Selects the scan source (such as a document-feeder). --mode Lineart|Gray|Color [Gray] Selects the scan mode (e.g., lineart, monochrome, or color). --resolution 100|150|200|240|300|400|600dpi...
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Package updates
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Image transfer buffer management improvement
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Added gt68xx.ini (mustek)
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I just checked in a fix for this. Please give it a try and let me know how it goes.
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Accept larger chunks during image transfer (SANE 1.3)
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With Sane 1.3.1 the scanner starts but I get a blank or black pages. With scanimage over the network it works.
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It is also interesting that the imprinter only comes via the network but not locally on the server All options specific to device 'net:192.168.14.207:canon_dr:libusb:001:007': Standard: --source ADF Front|ADF Duplex [ADF Front] Selects the scan source (such as a document-feeder). --mode Lineart|Gray|Color [Gray] Selects the scan mode (e.g., lineart, monochrome, or color). --resolution 100|150|200|240|300|400|600dpi [600] Sets the resolution of the scanned image. Geometry: --page-width 0..215.872mm...
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It is also interesting that the imprinter only comes via the network but not locally on the server All options specific to device 'net:192.168.14.207:canon_dr:libusb:001:007': Standard: --source ADF Front|ADF Duplex [ADF Front] Selects the scan source (such as a document-feeder). --mode Lineart|Gray|Color [Gray] Selects the scan mode (e.g., lineart, monochrome, or color). --resolution 100|150|200|240|300|400|600dpi [600] Sets the resolution of the scanned image. Geometry: --page-width 0..215.872mm...
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I have downgrade my scansrv. root@sanesrv01:~# apt policy sane-utils sane-utils: Installed: 1.0.31-4.1 Now I can scan. I would like to create a test setup with 1.3.1 there were some fixes. v65 2023-06-06, MAN - fix imprinter support (#672) - update attach_one and other init functions
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TWAIN: don't try to set unsettable SANE options
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Avoid exception when optionvaluesets collection is null
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TWAIN: Fixed failure to set SANE string options
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I'm testing with a DR-C225II, which is less well supported than your DR-C125 according to http://www.sane-project.org/sane-mfgs.html#Z-CANON. I found that I couldn't scan at all using sane-backends 1.2.1, I could scan only in color using 1.1.1, and both grey and color worked using 1.0.29.
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Thanks for the customization. I have compiled the code. The error message is now gone. Unfortunately, scanning still does not work. I get an IO error from the saned backend. I am now testing the older version of saned.
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The breaking change in the canon_dr backend was introduced in 1.2.1, so if you can downgrade to 1.1.1 that should work for you. I fixed the bugs in SANEWinDS that were revealed by the bugs in canon_dr, but I'd like to spend more time testing before releasing a new version. If you can compile from the current source it should work for you now.
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Replace IIF() with IF()
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Don't crash if the backend sends null values in a constraint list (canon_dr)
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I have reproduced this issue and will work on a fix.
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Hello, I am using a Canon DR-C125 with sand (1.2.1). When I try to connect to the scanner, I get an error message. Does anyone have an idea what the problem could be? 2025-02-24 11:34:58.8265 DEBUG [SANEWinDS.SANE_API.Net_Control_Option] Option=dropout-front, Action=SANE_ACTION_SET_VALUE 2025-02-24 11:34:58.8265 DEBUG [SANEWinDS.SANE_API.Net_Control_Option] New value(0) = 'None' 2025-02-24 11:34:58.8265 DEBUG [SANEWinDS.FormMain.SetOpt] Value Type = 'System.String', Value = 'None' 2025-02-24 11:34:58.8265...
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Updated INI file handling for new TW_BOOL enum.
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Bertrand DELAITRE posted a comment on discussion General Discussion
Solved. It must be installed as Administrator. Run PowerShell as Admin Run this command Start-Process msiexec.exe -ArgumentList '/i', "SANEWinDS_1.5.9111_x64.msi" -Verb RunAs Now, it works
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Hello, I'm using Windows 11 and the thin client works like a charm to access a Canon MP540 scanner installed on a Raspberry PI 2b with Wifi. Now, I want to use NAPS2 to access the scanner but I can't find a TWAIN source for this scanner. Is there something to do to be able to use TWAIN sources?
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TWAIN: Fixed incorrect TWCC_BADVALUE when type conversion is required on MSG_SET
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Updated genesys.ini with values from more recent backend
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TWAIN: improved compliance with 2.1 standard
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TWAIN: DG_CONTROL/DAT_CAPABILITY/MSG_SET with same container as MSG_GET
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Check for null pointer after allocating memory
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TWAIN: Integrated ICAP_SUPPORTEDSIZES with other UINT16 TWON_ENUMERATION types for cap GET/SET.
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TWAIN: Allow setting ICAP_SUPPORTEDSIZES by TW_ENUMERATION
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TWAIN: when app is TWAIN 2.0, return TW_BOOL as enumeration.
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TWAIN: added DG_CONTROL/DAT_CAPABILITY/MSG_RESETALL
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Separate installers for 32 and 64 bit. Version 1.5.9111.
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Simplification of prior commit
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Added TWAIN 2.0 DSM_Entry entrypoint logic
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Please try 1.4 and let me know if it works for you.
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Release 1.4.9107
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For 32-bit TWAIN, only load the TWAIN 2.0 DSM if the calling DSM is also 2.0, otherwise load the TWAIN 1.x DSM.
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Added 64-bit TWAIN support
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VS and package updates
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You're correct, only 32-bit TWAIN is currently implemented. I'll work on that.
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f8upd8 posted a comment on discussion General Discussion
Hi Alex! It appears to me that SANEWinDS is currently only able to interact with Twain 32bit API, since data sources for modern Twain API are missing (confirmed with 64-bit vs 32-bit example Twain apps). Am I misconfiguring something or is it intended? In IrfanView for instance I have to enable the old 32-bit Twain API.
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Please provide a trace log as mentioned above and I'll try to spot the problem. Thanks.
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Anonymous posted a comment on discussion General Discussion
I met the same issue, cry.....
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Package updates and housekeeping for version 1.3
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TWAIN: Added brightness and contrast settings to auto-created backend INI file
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TWAIN: Added ICAP_BRIGHTNESS and ICAP_CONTRAST
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TWAIN: don't translate TWAIN bit depths less than 3
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TWAIN: Inform applications which ICAP_PIXELTYPEs we support
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Housekeeping
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TWAIN: Prevent enabling duplex when duplex is not supported
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TWAIN: ensure non-zero step size in TW_RANGE_FIX32 structure for resolution caps
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TWAIN: Minor improvement to unit conversion logging
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TWAIN: enable setting of ICAP_BITORDER since it's mandatory
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TWAIN: Improved accuracy of result returned by DG_IMAGE/DAT_IMAGELAYOUT/MSG_SET
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TWAIN: Inform apps that we support mm and cm units
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